ortlieb



Patented Apr. 4, |899.

F. RTLIEB.

GOLD WASHING MACHINE.

(Application led Dec. 31, 1897.)

(No Model.)

' 2 Sheets-Sheet l.

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no. 622,255. y Patented Apr. 4, |899. F. UBTLIEB.

GOLD WASHING MACHINE.

(Application led Dec. 31, 1897.)

(No Model.) l 2 Sheets-Sheet 2.

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FREDERICK oRrLIEB, on LEI-neu, INDIAN TERRITORY. am

GOLD-WASHING MACHIN.

SPECIFICATION forming part of Letters Patent No. 622,255, dated April 4, 1899.

Application filed December 31, 1897. Serial No. 665,091. (No model.)

To @ZZ whom t may concern:

Be it known that I, FREDERICK ORTEIEB,

a citizen of the United States, residing at' Lehigh, in the Choctaw Nation, Indian Territory,have invented a new and useful Improvement in Gold-lashing Machines, which improvement is fully set forth in the following specification and accompanying drawings, in which- Figure l is a side elevation of my improved gold-washing machine; Fig. 2, a top view; Fig. 8, a detail view of the shaft carrying the main and supplementary wheels, which operate the shaker-frames Figs. 4. and 5, detail views.

My invention relates to certain improvements in gold-washing machines; and my object is to provide a simple, inexpensive, and useful apparatus specially designed to facilitate the separation of gold from. the sand, gravel,- dzc., in which it is found.

The invention consists of a rectangular frame containing a series of longitudinallyreciprocating shakingframes having a slight downward inclination toward the front of the machine. A central transverse shaft carries two wheels, each provided with a series of radially-proj ectin g arms or spurs and having lateral projections forming hubs, whichare also provided with a series of radial arms, both series being adapted to operate the shakers, which are provided with springs to draw them to theirinitial positions after each movement.

The peculiar operation and advantages of the invention will be understood byreferring to the accompanying drawings, in which A indicates the framework, consisting of four corner-posts connected at the sides by longitudinal bars B and at the ends by cross-bars C. On the latter are secured longitudinal bed-'frames 2, on which the shaker-frames 3 are reciprocated. These frames are substantially similar, differing only in the screens, the upper one having large meshes or openings, those below being graduated in succession, so that the meshes in the lower screen will allow only the water and fine dust to pass through.

A hopper 4 is xed on top of the machine to receive the sand and gravel. A shaft 5 is journaled in the center of the frame and carthe short arms alternately act on the two intermediate shakers.

On the outer side of each shaker-frame is fixed a laterally-projecting stud 9, which as the wheels revolve comes within the range of the outer ends of the radial arms, and the frame is thus drawn backwardly until the stud is released. The spring 10 then forces the frame forwardly to its original position, from which it is again drawn back by the next succeeding. arm.

In the operation it is obvious that while the upper shaker is being drawn rearwardly by the arm the lowest shaker will be forced forward by the spring. The same order obtains with the intermediate shakers, except that the short arms are so arranged as to divide the intervals between the long arms, thus securing the desired reciprocal action.

In order to prevent accidental detachment of the shaker-frames from their beds, the inn ner sides of the bed-rails are provided with recesses ll, which engage hangers or stirrups 12, having their upper ends attached to the inner sides of the shaker-frame rails, as shown in Fig. 5. y

It will be understood that when sand, gravel, dac., are thrown into the hopper and subjected to astream of falling water the gravel and other coarse material will be discharged from the chute 13, extending from the upper shaker, while the finer particles will filter through the graduated screens of the lower shakers and fall upon a blanket or other suit'- able strainer, which is stretched upon a :removable frame 14 beneath the shakers.

It will be evident that a small machine constructed on my plan may be easily operated by hand, and if steam or other power be employed the machine may be enlarged to any IOO and provided with radially-projecting spurs, the spurs of the larger wheels alternating with those of the smaller wheels, and being so arranged that the spurs of the large wheels strike the pins of the upper and lower shakerframes, while the spurs of the smaller Wheels strike the pins on the intermediate frames.

In testimony that I claim the foregoing I have hereunto set my hand, this 26th day of November', 1897, in the presence of witnesses.

FREDERICK ORTLIEB.

Vitnesses:

JAMES CAINE, HERMAN EBERLE. 

